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Infineon Technologies TLE42632GMXUMA1
- Part No.:
- TLE42632GMXUMA1
- Manufacturer:
- Infineon Technologies
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE42632GMXUMA1.pdf
- Description:
- IC REG LINEAR 5V 200MA DSO14-30
- Quantity:
- Payment:
- Shipping:
Inventory:3,591
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Product details
Overview
TLE42632GMXUMA1 from Infineon Technologies is a monolithic automotive-grade very low dropout (VLDO) linear voltage regulator in PG-DSO-14 package, delivering 5.0 V ±2% output at up to 180 mA. It integrates power-on/undervoltage reset with programmable delay, adjustable reset threshold (down to 3.5 V), watchdog monitoring for microcontrollers, and inhibit-controlled shutdown. Used in engine control units and body electronics where stable 5 V supply and system supervision are critical.
For engineers reviewing the TLE42632GMXUMA1 datasheet, TLE42632GMXUMA1 pinout, TLE42632GMXUMA1 application, or TLE42632GMXUMA1 equivalent, key selection factors include its 45 V max input, 180 mA load capability, programmable watchdog timeout via external capacitor CD, adjustable reset threshold using resistor divider, and integrated overtemperature and short-circuit protection.
Technical Context
The TLE42632GMXUMA1 implements a VLDO architecture enabling regulation down to ~300 mV dropout at full load, supporting operation across automotive battery transients (4.5–45 V). Its internal watchdog circuit monitors pulse activity on the W pin and asserts RO low if pulses cease beyond the timeout set by CD - a critical feature for fail-safe microcontroller supervision.
Reset functionality combines power-on delay (set by CD), undervoltage detection (VQ,rt adjustable from 3.5 V to 5.0 V), and RO active-low assertion. The inhibit input enables zero-current shutdown mode, while reverse polarity protection and thermal shutdown ensure robustness in harsh environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.0 V ±2% - tight regulation ensures reliable logic-level compatibility with automotive MCUs and sensors. |
| Max Input Voltage | 45 V - supports cold-crank and load-dump conditions per ISO 7637-2 without external protection. |
| Output Current | 180 mA - sufficient to power multiple low-power ECUs or sensor interfaces from single regulator. |
| Dropout Voltage | ≤300 mV @ 180 mA - enables stable 5 V output even during low-battery cranking (e.g., 5.3 V input). |
| Reset Threshold Range | 3.5 V to 5.0 V - externally adjustable via resistor divider to match MCU VDD tolerance and brown-out requirements. |
| Watchdog Timeout | Programmable via CD - allows precise tuning of fault response time for specific MCU instruction cycles or safety intervals. |
| Standby Current | Typ. 0 mA when inhibited - eliminates quiescent drain in sleep-mode vehicle architectures. |
Pinout & Package
Package: PG-DSO-14 (14-pin exposed pad SOIC variant, RoHS-compliant, thermally enhanced).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Main input supply | Accepts 4.5–45 V; includes reverse polarity and transient protection circuitry. |
| GND | Power ground | Common reference for all internal circuits and external components; connected to exposed thermal pad. |
| VOUT | Regulated output | Delivers 5.0 V ±2% to load; requires local 1 µF ceramic capacitor for stability. |
| RO | Reset output | Open-drain active-low signal indicating reset condition (UVLO, watchdog timeout, or thermal shutdown). |
| W | Watchdog input | Accepts periodic pulses from MCU; missing pulse triggers RO assertion after timeout set by CD. |
| CD | Capacitor connection | External capacitor sets both power-on reset delay and watchdog timeout period. |
| RSTADJ | Reset threshold adjust | Connects to external resistor divider to scale VQ,rt from 3.5 V to 5.0 V. |
| INH | Inhibit control | Active-high digital input; forces regulator into zero-current shutdown when low. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated watchdog timer | Enables autonomous MCU health monitoring without external ICs; timeout fully capacitor-programmable. |
| Adjustable reset threshold | Supports custom brown-out detection for diverse MCU families via simple resistor divider on RSTADJ. |
| Zero-quiescent shutdown | INH-driven shutdown reduces current to ~0 mA, meeting stringent automotive sleep-mode current budgets (e.g., <100 µA). |
| Robust protection suite | Includes reverse polarity protection, short-circuit limiting, overtemperature shutdown, and ESD-hardened I/O pins. |
| Automotive qualification | AEC-Q100 Grade 1 (−40 °C to +125 °C ambient), qualified for under-hood and chassis applications. |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Powers 5 V microcontroller, CAN transceiver, and analog sensors in gasoline/diesel engine management systems. IC Role / Device Role / Timing Role: Primary 5 V power source and system supervisor - provides regulated supply, power-on reset, and watchdog monitoring. Use Value: Ensures deterministic MCU startup and continuous runtime integrity during voltage sags, cranking, or EMI events. | Use Scenario: Supplies door module controllers, window lift ECUs, and interior lighting drivers in centralized body electronics. IC Role / Device Role / Timing Role: Regulator + supervisor IC - delivers stable 5 V rail while monitoring MCU health and enabling controlled sleep/wake transitions. Use Value: Reduces BOM count by integrating reset, watchdog, and inhibit functions previously requiring discrete logic or additional supervisors. |
| Advanced Driver Assistance Systems (ADAS) Sensor Hub | Infotainment Power Management |
Use Scenario: Powers radar preprocessing MCU and analog front-end in compact ADAS domain controllers. IC Role / Device Role / Timing Role: Low-noise 5 V regulator with fail-safe supervision - RO output feeds safety monitor or ASIL-B diagnostic path. Use Value: Meets functional safety requirements (ISO 26262) through configurable reset timing and watchdog coverage of MCU firmware execution. | Use Scenario: Supplies USB interface ICs, display controllers, and audio codecs in head-unit mainboard power tree. IC Role / Device Role / Timing Role: Secondary 5 V regulator with programmable reset delay - coordinates power sequencing with main SoC and PMIC. Use Value: Enables clean power-up sequence and prevents lockup during cold boot by synchronizing reset assertion with voltage ramp. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive LDO regulator with watchdog applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV70733PDPWR | 3.3 V fixed output, no watchdog or adjustable reset; 200 mA rating, SOT-23-5 package. | Lacks system supervision features; suitable only for basic point-of-load regulation without MCU monitoring. | Select when watchdog/reset integration is unnecessary and space constraints favor SOT-23. |
| MAX16135ATA+T | 5 V output, integrated watchdog and reset, but rated only to 40 V input and −40 °C to +105 °C. | Not AEC-Q100 qualified; limited to cabin/non-under-hood applications due to temperature and voltage derating. | Choose for non-automotive industrial systems needing similar supervision but lower environmental stress. |
Compared with TLV70733PDPWR and MAX16135ATA+T, the TLE42632GMXUMA1 uniquely combines AEC-Q100 Grade 1 qualification, 45 V input tolerance, adjustable reset threshold, and capacitor-programmable watchdog - making it the only option qualified for under-hood engine and transmission control applications requiring full functional safety support.
Availability
TLE42632GMXUMA1 is available at Aetrix Electronics and suitable for engine control units, body control modules, and ADAS sensor hubs requiring stable component supply, automotive qualification, and integrated system supervision.
Supply support for TLE42632GMXUMA1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Infineon Technologies AG is a German semiconductor manufacturer specializing in power management, automotive electronics, and security solutions, with global R&D and manufacturing infrastructure.
The OPTIREG™ linear regulator product line targets automotive power systems requiring high reliability, wide input range, and integrated safety features - designed specifically for ECU, BCM, and ADAS subsystems operating in harsh environments.
FAQ
What is the minimum input voltage required for regulation?
The TLE42632GMXUMA1 maintains regulation down to 4.5 V input. Below this, output drops linearly with input; the device remains functional but cannot sustain 5.0 V output. This threshold aligns with automotive battery "sleep mode" minimums and supports operation during extended key-off states.
How is the watchdog timeout period calculated?
The watchdog timeout is determined by the capacitance value on the CD pin and follows a linear relationship specified in the datasheet: tWD ≈ 1.1 × CD × 10⁶ µs (e.g., 100 nF yields ~110 ms). The same capacitor sets power-on reset delay, simplifying design and reducing component count.
Does the reset output RO drive a pull-up internally?
No - RO is an open-drain output requiring an external pull-up resistor (typically 10 kΩ to VOUT or VCC). This allows flexible interfacing with different logic families and voltage domains, and prevents contention when multiple RO signals are wire-ORed in system-level reset trees.
Can the inhibit function be used for dynamic power cycling?
Yes - INH supports fast enable/disable transitions (typ. 10 µs rise/fall), enabling dynamic power cycling of downstream circuits. When INH is low, VOUT collapses and quiescent current drops to ~0 mA, making it suitable for wake-on-LIN/CAN or periodic sensor polling architectures.
TLE42632GMXUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 45V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- 180mA
- Current - Quiescent (Iq):
- -
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Delay, Inhibit, Reset Output, Watchdog
- Protection Features:
- Over Temperature, Reverse Polarity, Short Circuit
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-DSO-14-61
TLE42632GMXUMA1 FAQ
1.How can I place an order for TLE42632GMXUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE42632GMXUMA1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TLE42632GMXUMA1 reliable?
The price and inventory of TLE42632GMXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE42632GMXUMA1 is usually 5 days.
3.What payment methods are accepted for TLE42632GMXUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE42632GMXUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE42632GMXUMA1?
TLE42632GMXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE42632GMXUMA1 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TLE42632GMXUMA1?
For technical support, including TLE42632GMXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE42632GMXUMA1 requirements.
6.How does Aetrix verify that TLE42632GMXUMA1 is sourced from the original manufacturer or authorized distributors?
All TLE42632GMXUMA1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TLE42632GMXUMA1 meets industry standards.
7.What is the process for return or replacement of TLE42632GMXUMA1?
All TLE42632GMXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE42632GMXUMA1, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TLE42632GMXUMA1 part is unused and in its original packaging.
Return procedure for TLE42632GMXUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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